Chemistry, 21.08.2021 14:50 jaejaeJae941
a radioactive element has a half-life of 30 days. calculate the mass of the element that remains after 20 days if 100g of the element decays. Also, calculate the decay constant.
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Chemistry, 23.06.2019 06:20
Type the correct answer in each box.balance the chemical equation.__ n203 ➡️ __ n2 +__ o2
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Chemistry, 23.06.2019 09:20
Four statements about the development of the atomic model are shown below. a: electrons have wavelike properties. b: atoms have small, negatively charged particles. c. the center of an atom is a small, dense nucleus. d: atoms are hard, indivisible spheres. which order of statements represents the historical development of the atomic model? c-d-a-b c-d-b-a d— в-а — с d-b-c-a
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Chemistry, 23.06.2019 11:00
Intermolecular forces. question i need with: the only intermolecular forces that affect non polar molecules are forces.
Answers: 2
a radioactive element has a half-life of 30 days. calculate the mass of the element that remains aft...
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